Answer
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Hint: Through the diffusion process the heat is going to transfer from high concentration to lower concentration easily. In case of emitted radiation it is going to transfer form a lower frequency to higher frequency as the raise in temperature.
Complete answer:
plete step by step answer:
In Assertion it is given that when an iron rod is heated in a furnace, the radiation emitted goes from a lower frequency (high wavelength region) to a higher frequency (lower wavelength) as the temperature increases.
The above statement is correct because through the diffusion process the radiation emitted is going to transfer from lower concentration to higher concentration. Therefore Assertion is correct.
According to Planck's relation we know that
E = hν
Here E = energy, ν = frequency and h = Planck’s constant
From the above equation it is clear that the energy of a quantum of radiation is proportional to its frequency.
Reason is also correct.
In the question both assertion and reason is correct but reason is not the correct explanation for assertion.
So, the correct answer is “Option B”.
Note: As the frequency increases wavelength decreases and as the frequency decreases the wavelength increases. Wavelength and Frequency are inversely proportional to each other.
Complete answer:
plete step by step answer:
In Assertion it is given that when an iron rod is heated in a furnace, the radiation emitted goes from a lower frequency (high wavelength region) to a higher frequency (lower wavelength) as the temperature increases.
The above statement is correct because through the diffusion process the radiation emitted is going to transfer from lower concentration to higher concentration. Therefore Assertion is correct.
According to Planck's relation we know that
E = hν
Here E = energy, ν = frequency and h = Planck’s constant
From the above equation it is clear that the energy of a quantum of radiation is proportional to its frequency.
Reason is also correct.
In the question both assertion and reason is correct but reason is not the correct explanation for assertion.
So, the correct answer is “Option B”.
Note: As the frequency increases wavelength decreases and as the frequency decreases the wavelength increases. Wavelength and Frequency are inversely proportional to each other.
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